Samsung has released a new software update G615FXXU1AQF4 for Galaxy J7 Max, update J320FXXU0AQF1 for Galaxy J3 and J120HXXS0AQF1 update for J1.
The update includes Android June security patch which addresses a total of 96 Common Vulnerabilities and Exposures (CVE) in the open-source Android OS and 23 additional patches designed specifically for Galaxy-branded smartphones.
In addition, the firmware update also brings device stability improvements, bug fixes and other improvements for performance.
Software Update G615FXXU1AQF4 for Galaxy J7 Max, update J320FXXU0AQF1 for Galaxy J3 and J120HXXS0AQF1 update for J1 is rolling out as OTA update. The updates will gradually release to everyone.
You can also check manually for updates, go to Settings > About device > System update. Make sure you have enough charge on your device at least 60% to 70% before downloading the update.